/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/Collision/ContactTriangles.h
Data held alongside contact points when generating contacts against a (likely non-convex) mesh of triangles.
class FContactTriangle
FVec3
FaceNormal
int32
TriangleIndex
int32[3]
VertexIndices
Indices into the mesh (trimesh or heightfield) that generated the triangle.
FVec3[3]
Vertices
Triangle data.